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Density matrix renormalization group study of the interacting Kitaev chain with quasi-periodic disorder

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  • K. S. C. Decker

    (Technische Universität Braunschweig)

  • C. Karrasch

    (Technische Universität Braunschweig)

Abstract

We document the ground state phase diagram of the one-dimensional Kitaev chain with quasi-periodic disorder in the presence of two-body interactions. Our data were obtained for systems of $$L=1000$$ L = 1000 sites using large-scale density-matrix renormalization group numerics and is benchmarked against known results for the clean system. We demonstrate that moderate quasi-periodic disorder stabilizes the topological phase both for repulsive and attractive interactions. For larger disorder strengths, the system features re-entrance behavior and multiple phase transitions. Graphical abstract Phase diagram as a function of the chemical potential and the disorder strength for repulsive interactions

Suggested Citation

  • K. S. C. Decker & C. Karrasch, 2024. "Density matrix renormalization group study of the interacting Kitaev chain with quasi-periodic disorder," The European Physical Journal B: Condensed Matter and Complex Systems, Springer;EDP Sciences, vol. 97(8), pages 1-9, August.
    • Handle: RePEc:spr:eurphb:v:97:y:2024:i:8:d:10.1140_epjb_s10051-024-00690-8
    DOI: 10.1140/epjb/s10051-024-00690-8
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